AirHint found the following cheapest one-way flights from Montreal (YUL) to Oslo (OSL) in August 2025 (see full year).

One-Way flights

22 Aug	Porter Airlines (Canada) Ltd
13 Aug	Porter Airlines (Canada) Ltd
11 Aug	Porter Airlines (Canada) Ltd
01 Aug	Porter Airlines (Canada) Ltd
15 Aug	Porter Airlines (Canada) Ltd
23 Aug	Porter Airlines (Canada) Ltd
24 Aug	Porter Airlines (Canada) Ltd
12 Aug	Porter Airlines (Canada) Ltd
14 Aug	Porter Airlines (Canada) Ltd
21 Aug	FrenchBee

Also check the deals for return flights from Montreal to Oslo in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest one-way flights from Montreal to Oslo in August from 254€

One-Way flights